Several factors can impact the reliability of your email marketing campaigns:
Sender Reputation: A good sender reputation ensures your emails are not marked as spam. Content Quality: Relevant and valuable content encourages higher engagement. List Hygiene: Regularly updating and cleaning your email list prevents sending to inactive or invalid addresses. Technical Setup: Proper email authentication protocols such as SPF, DKIM, and DMARC. Frequency and Timing: Sending emails too frequently or at the wrong times can lead to higher unsubscribe rates.